#VU50448 Path traversal in SAP NetWeaver Master Data Management Server - CVE-2021-21475

Vulnerability identifier: #VU50448

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-21475

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SAP NetWeaver Master Data Management Server
Web applications / Remote management & hosting panels

Vendor: SAP

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in SAP NetWeaver Master Data Management. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SAP NetWeaver Master Data Management Server: 710 - 710.750

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External links
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543
https://launchpad.support.sap.com/#/notes/3000897

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.